IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 scale mail
(1, 11, D:1)
  20 sling bullets
(17, 3, D:1)
  a +0 short sword
(21, -2, D:1)
  a +0 short sword
(24, -3, D:1)
  21 arrows
(25, 14, D:1)
  17 stones
(32, 30, D:1)
  a +0 whip
  3 stones
(33, 30, D:1)
  a +0 hunting sling
(38, -16, D:1)
  a +0 dagger
(40, -5, D:1)
  a +1 dagger of speed
(41, -3, D:1)
  a +0 chain mail
(41, 16, D:1)
  a +0 dagger
  a +0 robe

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 plate armour
(2, 26, D:2)
  a +0 chain mail
(20, 32, D:2)
  a +0 robe
(24, 1, D:2)
  a +0 dagger
(25, 3, D:2)
  18 bolts
(25, 39, D:2)
  5 atropa-tipped darts
(41, 26, D:2)
  a +0 short sword
  3 stones
(52, 6, D:2)
  a +0 kite shield

Level 3 of the Dungeon
(1, -5, D:3)
  2 stones
(1, 1, D:3)
  a +0 robe
(2, -8, D:3)
  21 arrows
(9, -10, D:3)
  a +0 leather armour
(16, -26, D:3)
  30 arrows
(17, -1, D:3)
  a +0 short sword
  4 stones
(22, 12, D:3)
  a +0 club
  a +0 flail
  a +0 ring mail
  a +0 club
(25, -9, D:3)
  a +0 spear
(26, 20, D:3)
  21 stones
(35, 0, D:3)
  a +0 dagger
(36, 20, D:3)
  4 stones
  a +0 whip
(46, -2, D:3)
  25 stones

Level 4 of the Dungeon
(0, 0, D:4)
  23 stones
(4, 20, D:4)
  a +0 mace
(7, 22, D:4)
  a quokka corpse
(11, 2, D:4)
  a +0 halberd
(11, 3, D:4)
  a +0 spear
  a gnoll corpse
(11, 4, D:4)
  a +0 whip
(13, 20, D:4)
  a quokka corpse
(20, 4, D:4)
  a +0 club
  a goblin corpse
(24, 8, D:4)
  a +0 club (still there?)
  11 poisoned darts (still there?)
  a potion of attraction (still there?)
  2 scrolls of fog (still there?)
  a gnoll corpse (still there?)
(24, 20, D:4)
  a +0 flail
  a +0 spear
  a gnoll corpse (skeletalised by now)
(24, 21, D:4)
  a +0 whip
(26, 26, D:4)
  4 large rocks {!d}
(28, 15, D:4)
  15 stones
(30, 17, D:4)
  a ball python corpse (skeletalised by now)
(30, 24, D:4)
  a +0 quarterstaff
(31, 29, D:4)
  a +0 dagger
(32, 19, D:4)
  a +0 dagger
  a +0 robe
  a goblin corpse (skeletalised by now)